Cartridge and electronic cigarette

ABSTRACT

A cartridge and an electronic cigarette are provided. The cartridge includes an atomizer including a supporting base and an atomizing head installed in the supporting base; a liquid storage container installed on the supporting base, a liquid storage chamber being defined between the liquid storage container and the supporting base; a liquid pump configured for pumping e-liquid in the liquid storage chamber to the atomizing head; a constant pressure member installed in the supporting base and only allowing external air to flow into the liquid storage chamber in one direction. Through the arrangement of the constant pressure member, the air in the liquid storage chamber can be quickly replenished, so that the air pressure in the liquid storage chamber is balanced, and the piezoelectric pump can pump the e-liquid more smoothly.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation-in-part of International PatentApplication No. PCT/CN2020/078125, filed on Mar. 6, 2020, entitled“cartridge and electronic cigarette”, which claims priority to ChinesePatent Application Nos. 201910223781.3, 201910223770.5 and201910224294.9, filed on Mar. 22, 2019. All of the aforementioned patentapplications are hereby incorporated by reference in their entireties.

TECHNICAL HELD

The disclosure relates to the technical field of electronic cigarette,and more particularly, relates to a cartridge and an electroniccigarette capable of automatically supplying liquid.

BACKGROUND

At present, the liquid supply mode of the electronic cigarette is toprovide a liquid storage member, and then the liquid storage member canprovide the e-liquid required for atomization to the atomizer by manualor by suction using a liquid absorbing member. At the same time, somee-cigarettes are equipped with liquid pumps to automatically pumpe-liquid into the atomizer. However, due to the fast start-up speed ofthe liquid pump, when the e-liquid in the liquid storage chamber isreduced, the air pressure in the liquid storage chamber decreases tocause suffocation in the liquid storage chamber. As a result, theworking load of the piezoelectric pump is increased, thereby causingdamage to the piezoelectric pump.

SUMMARY

Based on the above, it is necessary to provide a cartridge that canensure smoother pumping of e-liquid in response to the above-mentionedproblems.

It is also necessary to provide an electronic cigarette with thecartridge.

A cartridge includes:

an atomizer including a supporting base and an atomizing head installedin the supporting base;

a liquid storage container installed on the supporting base, a liquidstorage chamber being provided between the liquid storage container andthe supporting base;

a liquid pump configured for pumping e-liquid in the liquid storagechamber to the atomizing head; and

a constant pressure member installed in the supporting base and onlyallowing external air to flow into the liquid storage chamber in onedirection.

In one embodiment, the supporting base is provided with a constantpressure hole in communication with the external air and the liquidstorage chamber, the constant pressure member is installed in theconstant pressure hole.

In one embodiment, the supporting base includes an atomizing seat and anatomizing bracket installed on the atomizing seat, the atomizing seat isprovided with an air inlet hole in communication with the externalenvironment, a mounting hole communicating the air inlet hole and theliquid storage chamber is provided through the atomizing bracket, theair inlet hole and the mounting hole together serve as the constantpressure hole.

In one embodiment, the constant pressure member is a one-way valve or awaterproof breathable membrane.

In one embodiment, an outer periphery of the supporting base is providedwith an assembling portion, the liquid pump is installed in theassembling portion.

In one embodiment, the supporting base includes an atomizing bracket,the atomizing head is installed in the atomizing bracket; the atomizingbracket includes a top portion facing the user's mouth, a bottom portionfacing away from the top portion, and a side portion connected betweenthe top portion and the bottom portion;

the assembling portion is formed on the side portion of the atomizingbracket, the liquid pump is installed into the assembling portion and islocated in the flow path of the e-liquid to serve as a part of the fluidpassage communicating the liquid storage chamber and the atomizing head.

In one embodiment, the liquid pump includes a pump body, the pump bodyis provided with a liquid suction port in communication with the liquidstorage chamber and a liquid pumping port in communication with theatomizing head; a liquid outlet in communication with the atomizing headis provided inside the atomizing bracket; an included angle between acentral axis of the fluid passage between the liquid pumping port andthe liquid outlet and a central axis of the atomizer is α, and 0°<α≤90°.

In one embodiment, the liquid pump includes a pump body, the pump bodyis provided with a liquid suction port in communication with the liquidstorage chamber and a liquid pumping port in communication with theatomizing head; the liquid suction port and the liquid pumping port areboth located on the same side of the pump body facing the atomizinghead.

An electronic cigarette includes the above cartridge and a batterydevice configured for providing electric driving for the cartridge.

In the cartridge and the electronic cigarette of the present disclosure,since the liquid pump has a fast starting speed, when the e-liquid inthe liquid storage chamber decreases, the air pressure in the liquidstorage chamber decreases to cause suffocation in the liquid storagechamber, causing the working load of the piezoelectric pump to increaseand accordingly causing damage to the piezoelectric pump. Through thearrangement of the constant pressure member, the air in the liquidstorage chamber can be quickly replenished, so that the air pressure inthe liquid storage chamber is balanced, and the piezoelectric pump canpump the e-liquid more smoothly.

A cartridge includes:

an atomizer including a supporting base and an atomizing head installedin the supporting base;

a liquid storage container installed on the supporting base, a liquidstorage chamber being provided between the liquid storage container andthe supporting base; and

a liquid pump configured for pumping e-liquid in the liquid storagechamber to the atomizing head;

wherein an outer periphery of the supporting base is provided with anassembling portion, and the liquid pump is installed in the assemblingportion.

In one embodiment, the supporting base includes an atomizing bracket,the atomizing head is installed in the atomizing bracket; the atomizingbracket includes a top portion facing the user's mouth, a bottom portionfacing away from the top portion, and a side portion connected betweenthe top portion and the bottom portion;

the assembling portion is formed on the side portion of the atomizingbracket, the liquid pump is installed into the assembling portion and islocated in the flow path of the e-liquid to serve as a part of the fluidpassage communicating the liquid storage chamber and the atomizing head.

In one embodiment, the liquid pump includes a pump body, the pump bodyis provided with a liquid suction port in communication with the liquidstorage chamber and a liquid pumping port in communication with theatomizing head; a liquid outlet in communication with the atomizing headis provided inside the atomizing bracket; an included angle between acentral axis of the fluid passage between the liquid pumping port andthe liquid outlet and a central axis of the atomizer is α, and 0°<α≤90°.

In one embodiment, the liquid pump includes a pump body, the pump bodyis provided with a liquid suction port in communication with the liquidstorage chamber and a liquid pumping port in communication with theatomizing head; the liquid suction port and the liquid pumping port areboth located on the same side of the pump body facing the atomizinghead.

In one embodiment, the liquid pump is a piezoelectric pump.

In one embodiment, the supporting base includes an atomizing seatinstalled to the bottom portion of the atomizing bracket, the atomizingseat is provided with an air inlet hole in communication with theexternal environment, a mounting hole communicating the air inlet holeand the liquid storage chamber is provided through the atomizingbracket;

the cartridge further includes a constant pressure member, the constantpressure member is installed in the constant pressure hole and onlyallows external air to flow into the liquid storage chamber in onedirection.

In one embodiment, the constant pressure member extends toward the topof the liquid storage chamber and into the air layer above the liquidstorage chamber.

In one embodiment, the constant pressure member is a duckbill one-wayvalve.

In one embodiment, the atomizing head includes a liquid absorbing memberand a heating member, the heating member is a porous ceramic heatingmember, and the liquid absorbing member is made of porous ceramic.

An electronic cigarette includes the above cartridge and a batterydevice configured for providing electric driving for the cartridge.

In the cartridge and the electronic cigarette of the present discourse;the liquid transfer between the liquid storage chamber and the atomizinghead is performed by the liquid pump. The liquid pump can automaticallysupply e-liquid according to the consumption of the atomizing head,thereby effectively preventing liquid leakage and dry burning. At thesame time, the liquid pump is installed into the outer periphery of thesupporting base through the assembling portion, so that the liquid pumpcan be directly installed from the outside of the supporting base, whichis convenient for assembly and disassembly.

BRIEF DESCRIPTION OF TUE DRAWINGS

FIG. 1 is a schematic structural diagram of a cartridge of an electroniccigarette according to one embodiment of the present disclosure;

FIG. 2 is an exploded schematic diagram of the cartridge of theelectronic cigarette shown in FIG. 1;

FIG. 3 is a bottom view of the cartridge of the electronic cigaretteshown in FIG. 1;

FIG. 4 is a cross-sectional view of the cartridge shown in FIG. 3 alongthe A-A direction;

FIG. 5 is a front view of the cartridge of the electronic cigaretteshown in FIG. 1;

FIG. 6 is a cross-sectional view of the cartridge shown in FIG. 5 alongthe B-B direction.

Electronic cigarette  100 Cartridge  10 Atomizer  11 Supporting base 110 Assembling portion 1101 Atomizing bracket 1103 Top portion 1103ABottom portion 1103B Side portion 1103C Liquid inlet 1104A Liquid outlet1104b Atomizing seat 1105 Air inlet opening 1107 Air inlet hole 1109Mounting hole 1110 Atomizing head  112 Atomizing electrode  114 Liquidpump electrode  116 Fixing member  118 Liquid storage container  13Liquid storage chamber  130 Liquid pump  15 Pump body  150 Liquidsuction port 1501 Liquid pumping port 1503 Constant pressure member  17Sealing ring  19 Liquid inlet sealing member  20 First opening  21Second opening  23 Vent tube  132 Atomizing chamber  113 Smoking port 134 Communication hole 1112 Smoke outlet chamber 1114 Smoke guidinggroove 1116 Third opening  25 Constant pressure hole 1108

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

In order to facilitate the understanding of the present disclosure, thepresent disclosure will be described in details with reference to theaccompanying drawings. Preferred embodiments of the present disclosureare given in the accompanying drawings. However, the present disclosurecan be realized in many different forms and is not limited to theembodiments described herein. On the contrary, the purpose of providingthese embodiments is to make a more thorough and comprehensiveunderstanding of the disclosed contents of the present disclosure.

It should be noted that when an element is referred to as being “fixedto” another element, it may be directly on the other element or theremay be a centered element. When an element is considered to be“connected” to another element, it can be directly connected to theother element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used hereinhave the same meaning as commonly understood by one of ordinary skill inthe art to which this disclosure belongs. The terms used herein in thedescription of the present disclosure are only for the purpose ofdescribing specific embodiments, and are not intended to limit thepresent disclosure. The term “and/or” as used herein includes any andall combinations of one or more of the associated listed items.

Please refer to FIG. 1, in an embodiment of the present disclosure, anelectronic cigarette 100 includes a cartridge 10 and a battery device(not shown) for providing electric driving for the cartridge 10.Specifically, the e-liquid stored in the cartridge 10 can be heated bythe electric driving of the battery device to generate smoke, and thesmoke can be inhaled by the user.

Please refer to FIG. 2, the cartridge 10 includes an atomizer 11, aliquid storage container 13 and a liquid pump 15. Specifically, a liquidstorage chamber 130 (as shown in FIG. 4) for storing e-liquid is formedin the liquid storage container 13, the liquid pump 15 is used toautomatically pump the e-liquid in the liquid storage chamber 130 intothe atomizer 11, and the e-liquid is heated by the battery device toform smoke for the user to inhale.

The atomizer 11 includes a supporting base 110 and an atomizing head112. The supporting base 110 is configured to provide an installationfoundation, and the outer periphery, of the supporting base 110 isprovided with an assembling portion 1101 in communication with theoutside. The liquid pump 15 is detachably installed in the assembling;portion 1101 and used for pumping e-liquid into the atomizing head 112.The liquid storage chamber 130 is defined between the liquid storagecontainer 13 and the supporting base 110. The above-mentioned “outerperiphery” refers to the outer surface of the supporting base 110exposed to the external environment when it is not installed in theliquid storage container 13. The above-mentioned “assembling portion1101” includes but is not limited to a notch, hole, groove, and thelike.

Specifically, the supporting base 110 includes an atomizing bracket 1103and an atomizing seat 1105. The atomizing bracket 1103 is installed onthe atomizing seat 1105, and the atomizing head 112 is installed in theatomizing bracket 1103. It is understood that, in other embodiments notshown, the atomizing seat 1105 and the atomizing bracket 1103 areintegrally formed.

The atomizing bracket 1103 includes a top portion 1103A facing theuser's mouth, a bottom portion 1103B facing away from the top portion,and a side portion 1103C connected between the top portion 1103A and thebottom portion 1103B. The assembling portion 1101 is formed on the sideportion 1103C of the atomizing bracket 1103. The liquid pump 15 isinstalled into the assembling portion 1101 from the side portion 1103Cof the atomizing bracket 1103 and is located in the flow path of thee-liquid to serve as a part of the fluid passage communicating theliquid storage chamber 130 and the atomizing head 112. It is understoodthat, in other embodiments not shown, the assembling portion 1101 isformed on the top portion 1103A or the bottom portion 1103B of theatomizing bracket 1103. The liquid pump 15 is installed into theassembling portion 1101 from the top portion 1103A or from the bottomportion 1103B of the atomizing bracket 1103.

Specifically, the top portion 1103A of the atomizing bracket 1103 isprovided with a liquid inlet 1104A in communication with the liquidstorage chamber 130. A liquid outlet 1104B (as shown in FIG. 4) incommunication with the atomizing head 112 is provided inside theatomizing bracket 1103. The channel between the liquid inlet 1104A andthe liquid outlet 1104B is the fluid passage for the flowing of thee-liquid. When the liquid pump 15 is installed in the fluid passagebetween the liquid inlet 1104A and the liquid outlet 1104B, it can serveas a part of the fluid passage and provide a driving force for theflowing of the e-liquid at the same time.

In other words, the liquid pump 15 can be freely installed into theassembling portion 1101 from the side portion 1103C of the atomizingbracket 1103, which is easy to disassemble and assemble. At the sametime, the liquid pump 15 serves as a part of the fluid passage, so thatthe e-liquid in the liquid storage chamber 130 can be automatically andtimely supplied into the atomizing head 112, so as to avoid theoccurrence of abnormal conditions such as dry burning of the atomizinghead 112.

Specifically, an atomizing chamber 113 (as shown in FIG. 6) is formedbetween the atomizing bracket 1103 and the atomizing seat 1105, and theatomizing head 112 is at least partially received in the atomizingchamber 113. In this specific embodiment, the atomizing head 112 isarranged at the bottom portion 1103B of the atomizing bracket 1103, andthe lower surface of the atomizing head 112 is used as the atomizingsurface.

Please refer to FIG. 3 and FIG. 4, specifically, the liquid pump 15includes a pump body 150, the pump body 150 is provided with a liquidsuction port 1501 in communication with the liquid storage chamber 130and a liquid pumping port 1503 in communication with the atomizing head112. The liquid suction port 1501 and the liquid pumping port 1503 areboth located on the same side of the pump body 50 facing the atomizinghead 112. The included angle between the central axis of the fluidpassage between the liquid pumping port 1503 and the liquid outlet 1104Band the central axis of the atomizer 11 is α, and 0°<α≤90° preferably,the included angle α between the central axis of the fluid passagebetween the liquid pumping port 1503 and the liquid outlet 1104B and thecentral axis of the atomizer 11 is 90°. That is to say, after thee-liquid in the liquid storage chamber 130 is pumped into the pump body150 through the liquid suction port 1501 on the side facing theatomizing head 112, the e-liquid continues to be pumped out from theliquid pumping port 1503 on the side facing the atomizing head 112 andtransferred to the atomizing head 112 (as shown by the arrow flowdirection in FIG. 4). The pumping path from the liquid pumping port 1503to the liquid outlet 1104B is simplified, which is beneficial to improvethe response speed of the liquid pump 15 for pumping liquid. In thisspecific embodiment, the upper surface of the atomizing head 112 is atleast partially received in the liquid outlet 1104B, and the uppersurface of the atomizing head 112 serves as a liquid absorbing surface.

In this specific embodiment, due to the small size of the atomizer 11,the liquid pump 15 usually adopts a piezoelectric pump. Specifically,the piezoelectric pump is generally flat, and its bask principle is touse the inverse piezoelectric effect of the piezoelectric ceramic todeform the piezoelectric vibrator, and the volume of the pump cavityformed between the piezoelectric ceramic and the housing of the pumpchanges to achieve fluid output.

When the central axis of the fluid passage between the liquid pumpingport 1503 and the liquid outlet 1104B and the central axis of theatomizer 11 are at an angle of 90°, the pipeline from the liquid pumpingport 1503 to the liquid outlet 1104B is straight, and the pumping liquidhas a fast response speed. On the other hand, the pipeline from theliquid pumping port 1503 to the liquid outlet 1104B is straight, whichfacilitates the simplification of the pipeline, prevents the pipelinefrom being blocked, and reduces the difficulty of pipeline design.

The atomizing head 112 includes a receiving part (not shown), thereceiving part faces the liquid pumping port 1503, and the receivingpart corresponds to the liquid outlet 1104B. The receiving part may be aheating member (not shown) or a liquid absorbing member (not shown). Inthis embodiment, considering that the liquid pump 15 has a relativelystrong pressure when pumping e-liquid, the receiving part is made of ahard material, so as to prevent the atomizing head from failing andcausing liquid leakage when the e-liquid with a relatively strongpressure hits against the receiving part if it is made of a softmaterial. Specifically, the atomizing head is a porous ceramic heatingmember, and the porous ceramic heating member is made of a hardmaterial.

Please refer to FIG. 2 again, furthermore, the atomizer 11 furtherincludes an atomizing electrode 114 and a liquid pump electrode 116. Theatomizing electrode 114 is installed on the atomizing seat 1105 and atleast partly extends into the atomizing bracket 1103 to be electricallyconnected to the atomizing head 112 installed in the atomizing bracket1103, so that the atomizing head 112 and the battery device form anelectric circuit for atomizing.

Similarly, the liquid pump electrode 116 is installed on the atomizingseat 1105, and one end of the liquid pump electrode 116 away from theatomizing seat 1105 extends into the atomizing bracket 1103, so as to befixed to the atomizing bracket 1103 by a fixing member 118 and beelectrically connected to the liquid pump 15 installed in the assemblingportion 1101. It is understood that, in other embodiments not shown, theliquid pump electrode 116 is installed on the atomizing seat 1105, andone end of the liquid pump electrode 116 away from the atomizing seat1105 extends into the atomizing bracket 1103, so as to be directlyelectrically connected to the liquid pump 15 installed in the assemblingportion 1101.

In use, the e-liquid in the liquid storage chamber 130 is driven by theliquid pump 15 to be pumped into the fluid passage from the liquid inlet1104A, sucked into the pump body 150 through the liquid suction port1501, then pumped out through the liquid pumping port 1503, and finallyflows out from the liquid outlet 1104E to the atomizing head 12 forheating and atomizing by the atomizing head 12.

Please refer to FIG. 2, FIG. 5 and FIG. 6 together, furthermore, theatomizing seat 1105 is provided with an air inlet opening 1107, and theair inlet opening 1107 is in communication with the external air and theatomizing chamber 113. The cartridge 10 further includes a vent tube132, and the smoke generated in the atomizing chamber 113 is deliveredto the user's mouth through the inner cavity of the vent tube 132. Inthis embodiment, the atomizing seat 1105 is provided with the air inletopening 1107 at a position aligned with the atomizing head 112. Asmoking port 134 is provided in one end of the liquid storage container13 facing the user's mouth. The middle of the liquid storage container13 is provided with the vent tube 132 aligned with the atomizing head12. The inner cavity of the vent tube 132 is in communication with thesmoking port 134. A communication hole 1112 is provided in the topportion 1103A of the atomizing bracket 1103, the lower end of the venttube 132 is inserted into the communication hole 1112, and the innercavity of the vent tube 132 is in communication with the communicationhole 1112. A smoke outlet chamber 1114 is formed inside the atomizingbracket 1103. The communication hole 1112 is in communication with thesmoke outlet chamber 1114. The side portion 1103C of the atomizingbracket 1103 is provided with a smoke guiding groove 1116. The smokeguiding groove 1116 communicates the atomizing chamber 113 and the smokeoutlet chamber 1114. In other words, the air inlet opening 1107 isarranged below the atomizing head 112, and the vent tube 132 is arrangedabove the atomizing head 112. In this way, under the user's suctionaction, the external cold air flows through the air inlet opening 1107,the atomizing chamber 113, the smoke guiding groove 1116, the smokeoutlet chamber 1114, the communication hole 1112 and the inner cavity ofthe ventilation tube 132 in sequence, and finally through the smokingport 134 to reach the mouth of the user (as shown by the arrow flowdirection in FIG. 6). It is understood that, in other embodiments notshown, the liquid storage container 13 and the vent tube 132 are twoindependent parts or integrally formed.

The supporting base 110 is provided with a constant pressure hole 1108in communication with the external air and the liquid storage chamber130. Correspondingly, the cartridge 10 includes a constant pressuremember 17, which is installed in the constant pressure hole 1108 andonly allows external air to flow into the liquid storage chamber 130 inone direction. Specifically, the atomizing seat 1105 is provided with anair inlet hole 1109 in communication with the external environment, amounting hole 1110 communicating the air inlet hole 1109 and the liquidstorage chamber 130 is provided through the atomizing bracket 1103. Theair inlet hole 1109 and the mounting hole 1110 together serve as theconstant pressure hole 1108. The constant pressure member 17 can be aone-way valve or a waterproof breathable membrane, etc. In thisembodiment, the constant pressure member 17 is a one-way valve, which isinstalled in the mounting hole 1110 and forms a one-way air flow channelthat only allows external air to flow into the liquid storage chamber130 in one direction.

In this specific embodiment, since the piezoelectric pump (i.e., theliquid pump 15) has a fast starting speed, when the e-liquid in theliquid storage chamber 130 decreases, the air pressure in the liquidstorage chamber 130 decreases to cause suffocation in the liquid storagechamber 130, causing the working load of the piezoelectric pump toincrease and accordingly causing damage to the piezoelectric pump.Through the arrangement of the constant pressure member 17, the air inthe liquid storage chamber 130 can be quickly replenished, so that theair pressure in the liquid storage chamber 130 is balanced, and thepiezoelectric pump can pump the e-liquid more smoothly.

During use, under the user's suction action, the external cold air flowsto the atomizing head 112 through the air inlet opening 1107, so as tobe mixed with the smoke generated by the heating of the atomizing head112, and then passes through the gap between the atomizing bracket 1103and the liquid storage container 13 and the vent tube 132 sequentiallyto reach the mouth of the user. At the same time; the external cold airalso enters the liquid storage chamber 130 through the air inlet hole1109 and the constant pressure member 17, so as to prevent the airpressure in the liquid storage chamber 130 from being reduced during theatomization process and avoid the phenomenon of suffocation.

Further, the one-way valve extends toward the top of the liquid storagechamber 130 and into the air layer above the liquid storage chamber 130,so that the air flowing through the one-way valve can quickly reach theair layer of the liquid storage chamber 130 to improve the responsespeed. Preferably, the one-way valve is a duckbill one-way valve.

In addition, the cartridge 10 further includes sealing rings 19, thesealing rings 19 are respectively sealed and arranged between theatomizing seat 1105 and the liquid storage container 13, and between theatomizing head 112 and the atomizing bracket 1103, so as to prevent thecartridge 10 from leaking of the e-liquid.

At the same time, the cartridge 10 further includes a liquid inletsealing member 20, and the liquid inlet sealing member 20 is sealed andarranged on the top portion 1103A of the atomizing bracket 1103.Correspondingly, the liquid inlet sealing member 20 is provided with afirst opening 21, a second opening 23 and a third opening 25 which arearranged at intervals. Specifically, the first opening 21 is incommunication with the liquid storage chamber 130 and the inlet of thefluid passage to ensure that the e-liquid in the liquid storage chamber130 can be pumped to the atomizing head 12 under the action of theliquid pump 15. The second opening 23 is in communication with theliquid storage chamber 130 and the mounting hole 1110 to ensure that theexternal air entering the constant pressure member 17 can be passed intothe liquid storage chamber 130, to ensure the balance of the airpressure in the liquid storage chamber 130. The third opening 25corresponds to the position of the communication hole 1112 to ensure airflowing between the communication hole 1112 and the inner cavity of thevent tube 132.

In the cartridge 10 of the present application, the liquid transferbetween the liquid storage chamber 130 and the atomizing head 112 isperformed by the liquid pump 15. The liquid pump 15 can automaticallysupply e-liquid according to the consumption of the atomizing head. 112,thereby effectively preventing liquid leakage and dry burning. At thesame time, the liquid pump 15 is installed into the outer periphery ofthe supporting base 110 through the assembling portion 1101, so that theliquid pump 15 can be directly installed from the outside of thesupporting base 110, which is convenient for assembly and disassembly.At the same time, the constant pressure member 17 can quickly replenishthe air in the liquid storage chamber 130, so that the air pressure inthe liquid storage chamber 130 is balanced, and the liquid is pumpedsmoothly.

The electronic cigarette 100 provided in the first embodiment of thepresent disclosure has all the technical features of the above-mentionedcartridge 10, so it has the same technical effects as theabove-mentioned cartridge 10.

The above-mentioned embodiments merely represent several implementationsof the present application, and the descriptions thereof are morespecific and detailed, but they shall not be understood as a limitationon the scope of the present application. It should be noted that, forthose of ordinary skill in the art, variations and improvements maystill be made without departing from the concept of the presentapplication, and all of which shall fall into the protection scope ofthe present application. Therefore, the scope of protection of thepresent application shall be subject to the appended claims.

What is claimed is:
 1. A cartridge comprising: an atomizer comprising asupporting base and an atomizing head installed in the supporting base;a liquid storage container installed on the supporting base, a liquidstorage chamber being provided between the liquid storage container andthe supporting base; a liquid pump configured for pumping e-liquid inthe liquid storage chamber to the atomizing head; and a constantpressure member installed in the supporting base and only allowingexternal air to flow into the liquid storage chamber in one direction.2. The cartridge according to claim 1, wherein the supporting base isprovided with a constant pressure hole in communication with theexternal air and the liquid storage chamber, the constant pressuremember is installed in the constant pressure hole.
 3. The cartridgeaccording to claim 2, wherein the supporting base comprises an atomizingseat and an atomizing bracket installed on the atomizing seat, theatomizing seat is provided with an air inlet hole in communication withthe external environment, a mounting hole communicating the air inlethole and the liquid storage chamber is provided through the atomizingbracket, the air inlet hole and the mounting hole together serve as theconstant pressure hole.
 4. The cartridge according to claim 1, whereinthe constant pressure member is a one-way valve or a waterproofbreathable membrane.
 5. The cartridge according to claim 1, wherein anouter periphery of the supporting base is provided with an assemblingportion, the liquid pump is installed in the assembling portion.
 6. Thecartridge according to claim 5, wherein the supporting base comprises anatomizing bracket, the atomizing head is installed in the atomizingbracket; the atomizing bracket comprises a top portion facing the user'smouth, a bottom portion facing away from the top portion, and a sideportion connected between the top portion and the bottom portion; theassembling portion is formed on the side portion of the atomizingbracket, the liquid pump is installed into the assembling portion and islocated in the flow path of the e-liquid to serve as a part of the fluidpassage communicating the liquid storage chamber and the atomizing head.7. The cartridge according to claim 1, wherein the liquid pump comprisesa pump body, the pump body is provided with a liquid suction port incommunication with the liquid storage chamber and a liquid pumping portin communication with the atomizing head; a liquid outlet incommunication with the atomizing head is provided inside the atomizingbracket; an included angle between a central axis of the fluid passagebetween the liquid pumping port and the liquid outlet and a central axisof the atomizer is α, and 0°<α≤90°.
 8. The cartridge according to claim1, wherein the liquid pump comprises a pump body, the pump body isprovided with a liquid suction port in communication with the liquidstorage chamber and a liquid pumping port in communication with theatomizing head; the liquid suction port and the liquid pumping port areboth located on the same side of the pump body facing the atomizinghead.
 9. An electronic cigarette comprising the cartridge according toclaim 1 and a battery device configured for providing electric drivingfor the cartridge.
 10. A cartridge comprising: an atomizer comprising asupporting base and an atomizing head installed in e supporting base; aliquid storage container installed on the supporting base, a liquidstorage chamber being provided between the liquid storage container andthe supporting base; and a liquid pump configured for pumping e-liquidin the liquid storage chamber to the atomizing head; wherein an outerperiphery of the supporting base is provided with an assembling portion,and the liquid pump is installed in the assembling portion.
 11. Thecartridge according to claim 10, wherein the supporting base comprisesan atomizing bracket, the atomizing head is installed in the atomizingbracket; the atomizing bracket comprises a top portion facing the user'smouth, a bottom portion facing away from the top portion, and a sideportion connected between the top portion and the bottom portion; theassembling portion is formed on the side portion of the atomizingbracket, the liquid pump is installed into the assembling portion and islocated in the flow path of the e-liquid to serve as a part of the fluidpassage communicating the liquid storage chamber and the atomizing head.12. The cartridge according to claim 11, wherein the liquid pumpcomprises a pump body, the pump body is provided with a liquid suctionport in communication with the liquid storage chamber and a liquidpumping port in communication with the atomizing head; a liquid outletin communication with the atomizing head is provided inside theatomizing bracket; an included angle between a central axis of the fluidpassage between the liquid pumping port and the liquid outlet and acentral axis of the atomizer is α, and 0°<α≤90°.
 13. The cartridgeaccording to claim 10, wherein the liquid pump comprises a pump body,the pump body is provided with a liquid suction port in communicationwith the liquid storage chamber and a liquid pumping port incommunication with the atomizing head; the liquid suction port and theliquid pumping port are both located on the same side of the pump bodyfacing the atomizing head.
 14. The cartridge according to claim 13,wherein the liquid pump is a piezoelectric pump.
 15. The cartridgeaccording to claim 11, wherein the supporting base comprises anatomizing seat installed to the bottom portion of the atomizing bracket,the atomizing seat is provided with an air inlet hole in communicationwith the external environment, a mounting hole communicating the airinlet hole and the liquid storage chamber is provided through theatomizing bracket; the cartridge further comprises a constant pressuremember, the constant pressure member is installed in the constantpressure hole and only allows external air to flow into the liquidstorage chamber in one direction.
 16. The cartridge according to claim15, wherein the constant pressure member extends toward the top of theliquid storage chamber and into the air layer above the liquid storagechamber.
 17. The cartridge according to claim 15, wherein the constantpressure member is a duckbill one-way valve.
 18. The cartridge accordingto claim 10, wherein the atomizing head comprises a liquid absorbingmember and a heating member, the heating member is a porous ceramicheating member, and the liquid absorbing member is made of porousceramic.
 19. An electronic cigarette comprising the cartridge accordingto claim 10 and a battery device configured for providing electricdriving for the cartridge.